# Vue I18n: \`escapeParameter\` does not escape named values when the same call also passes a list

Advisory record · `GHSA-8rc2-428q-7ww3`

- **Identifiers:** `GHSA-8rc2-428q-7ww3` · `CVE-2026-118256`
- **State:** Confirmed
- **Severity:** CVSS 2.1 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-79](https://cwe.mitre.org/data/definitions/79.html) · [CWE-116](https://cwe.mitre.org/data/definitions/116.html)
- **Tags:** [Cross-site scripting (XSS)](https://agentprime.io/advisories/tag/xss.md) · [CWE-116](https://agentprime.io/advisories/tag/cwe-116.md)
- **Published:** 28 Oct 2026
- **Updated:** 28 Oct 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 28 Oct 2026, 21:06 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `vue-i18n` (npm): affected `>=9.0.0-beta.5, <11.4.14 || >=12.0.0-alpha.1, <12.0.0-alpha.5`; fixed in `11.4.14`, `12.0.0-alpha.5`
- `@intlify/core` (npm): affected `>=9.0.0-beta.10, <11.4.14 || >=12.0.0-alpha.1, <12.0.0-alpha.5`; fixed in `11.4.14`, `12.0.0-alpha.5`
- `@intlify/core-base` (npm): affected `>=9.0.0-beta.12, <11.4.14 || >=12.0.0-alpha.1, <12.0.0-alpha.5`; fixed in `11.4.14`, `12.0.0-alpha.5`
- `petite-vue-i18n` (npm): affected `>=9.2.0-alpha.7, <11.4.14 || >=12.0.0-alpha.1, <12.0.0-alpha.5`; fixed in `11.4.14`, `12.0.0-alpha.5`
- `@intlify/vue-i18n-core` (npm): affected `>=9.2.0-alpha.7, <11.4.14 || >=12.0.0-alpha.1, <12.0.0-alpha.5`; fixed in `11.4.14`, `12.0.0-alpha.5`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 2.1 Low, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0048, the 41st percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 13:33 UTC: First seen by agentprime
- 31 Oct 2026, 13:33 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-8rc2-428q-7ww3)

## Sources

- [GitHub Advisory Database: GHSA-8rc2-428q-7ww3](https://github.com/advisories/GHSA-8rc2-428q-7ww3)
- [OSV: GHSA-8rc2-428q-7ww3](https://osv.dev/vulnerability/GHSA-8rc2-428q-7ww3)
- <https://github.com/intlify/vue-i18n/security/advisories/GHSA-8rc2-428q-7ww3>
- <https://github.com/intlify/vue-i18n/pull/2680>
- <https://github.com/intlify/vue-i18n/commit/d657ce8f4b3b6b198a8f6e3d09e2b57a5d019fb8>
- <https://github.com/intlify/vue-i18n>
- <https://github.com/intlify/vue-i18n/releases/tag/v11.4.14>
- <https://github.com/intlify/vue-i18n/releases/tag/v12.0.0-alpha.5>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-8rc2-428q-7ww3>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-8rc2-428q-7ww3/>. Everything for agents: <https://agentprime.io/llms.txt>.